|
Packit |
6c4009 |
/* Tests for fcntl.
|
|
Packit |
6c4009 |
Copyright (C) 2000-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <errno.h>
|
|
Packit |
6c4009 |
#include <fcntl.h>
|
|
Packit |
6c4009 |
#include <paths.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <unistd.h>
|
|
Packit |
6c4009 |
#include <sys/stat.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Prototype for our test function. */
|
|
Packit |
6c4009 |
extern void do_prepare (int argc, char *argv[]);
|
|
Packit |
6c4009 |
extern int do_test (int argc, char *argv[]);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* We have a preparation function. */
|
|
Packit |
6c4009 |
#define PREPARE do_prepare
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include "../test-skeleton.c"
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Name of the temporary files. */
|
|
Packit |
6c4009 |
static char *name;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* File descriptor to temporary file. */
|
|
Packit |
6c4009 |
static int fd;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
void
|
|
Packit |
6c4009 |
do_prepare (int argc, char *argv[])
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
size_t name_len;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
name_len = strlen (test_dir);
|
|
Packit |
6c4009 |
name = xmalloc (name_len + sizeof ("/fcntlXXXXXX"));
|
|
Packit |
6c4009 |
mempcpy (mempcpy (name, test_dir, name_len),
|
|
Packit |
6c4009 |
"/fcntlXXXXXX", sizeof ("/fcntlXXXXXX"));
|
|
Packit |
6c4009 |
/* Create the temporary file. */
|
|
Packit |
6c4009 |
fd = mkstemp (name);
|
|
Packit |
6c4009 |
if (fd == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("cannot open temporary file: %m\n");
|
|
Packit |
6c4009 |
exit (1);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
add_temp_file (name);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
int
|
|
Packit |
6c4009 |
do_test (int argc, char *argv[])
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
int fd2;
|
|
Packit |
6c4009 |
int fd3;
|
|
Packit |
6c4009 |
struct stat64 st;
|
|
Packit |
6c4009 |
int val;
|
|
Packit |
6c4009 |
int result = 0;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fstat64 (fd, &st) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("cannot stat test file: %m\n");
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
if (! S_ISREG (st.st_mode) || st.st_size != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("file not created correctly");
|
|
Packit |
6c4009 |
return 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get the flags with fcntl(). */
|
|
Packit |
6c4009 |
val = fcntl (fd, F_GETFL);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_GETFL) failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if ((val & O_ACCMODE) != O_RDWR)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("temporary file not opened for read and write");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Set the flags to something else. */
|
|
Packit |
6c4009 |
if (fcntl (fd, F_SETFL, O_RDONLY) == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_SETFL, O_RDONLY) failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
val = fcntl (fd, F_GETFL);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_GETFL) after F_SETFL failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if ((val & O_ACCMODE) != O_RDWR)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("temporary file access mode changed");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Set the flags to something else. */
|
|
Packit |
6c4009 |
if (fcntl (fd, F_SETFL, O_APPEND) == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_SETFL, O_APPEND) failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
val = fcntl (fd, F_GETFL);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_GETFL) after second F_SETFL failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if ((val & O_APPEND) == 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("O_APPEND not set");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
val = fcntl (fd, F_GETFD);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_GETFD) failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fcntl (fd, F_SETFD, val | FD_CLOEXEC) == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_SETFD, FD_CLOEXEC) failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
val = fcntl (fd, F_GETFD);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_GETFD) after F_SETFD failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if ((val & FD_CLOEXEC) == 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("FD_CLOEXEC not set");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get a number of a free descriptor. If /dev/null is not available
|
|
Packit |
6c4009 |
don't continue testing. */
|
|
Packit |
6c4009 |
fd2 = open (_PATH_DEVNULL, O_RDWR);
|
|
Packit |
6c4009 |
if (fd2 == -1)
|
|
Packit |
6c4009 |
return result;
|
|
Packit |
6c4009 |
close (fd2);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
fd3 = fcntl (fd, F_DUPFD, fd2 + 1);
|
|
Packit |
6c4009 |
if (fd3 == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd, F_DUPFD, %d) failed: %m\n", fd2 + 1);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if (fd3 <= fd2)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("F_DUPFD returned %d which is not larger than %d\n", fd3, fd2);
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (fd3 != -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
val = fcntl (fd3, F_GETFD);
|
|
Packit |
6c4009 |
if (val == -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
printf ("fcntl(fd3, F_GETFD) after F_DUPFD failed: %m\n");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else if ((val & FD_CLOEXEC) != 0)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
puts ("FD_CLOEXEC still set");
|
|
Packit |
6c4009 |
result = 1;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
close (fd3);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return result;
|
|
Packit |
6c4009 |
}
|